body, html {
    width: 100%;
    height: 100%;
    background-color: #F1F1F1;
}

header {
    height: 40px;
    width: 100%;
    background-color: white;
    line-height: 40px;
    box-shadow: 0px 0px 5px 0px darkgrey;
    text-align: center;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 20;
}
header a:first-child{
    display: block;
    width: 40px;
    height: 40px;
}
header img {
    height: 17px;
    width: 10px;
    position: absolute;
    left: 15px;
    top: 12px;
}

header label {
    color: black;
    font-size: 15px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}

header .a2 {
    height: 25px;
    width: 25px;
    position: absolute;
    top: 12px;
    right: 35px;
    background-image: url("../../images/index/icons.png");
    background-size: 100px 75px;
    background-position: -50px 0px;
}

header .s {
    height: 25px;
    width: 25px;
    position: absolute;
    top: 10px;
    right: 5px;
    background-image: url("../../images/index/icons.png");
    background-size: 100px 75px;
    background-position: -25px 0px;
}

/*header END*/
.main {
    margin-top: 44px;
}
.main .operate_item{
    margin-bottom: 10px;
    width: 92%;
    padding: 25px 4% 12px;
    background: #FFFFFF;
    box-shadow: 0px 2px 10px rgba(0, 0, 0, 0.1)
}

.main .operate_item dt {
    margin: 10px 0;
    color: #000;
    font-size: 16px;
    text-align: center;
}
.main .operate_item dd {
    padding-left: 18px;
    font-size: 12px;
    color: #777777;
    position: relative;
}
.main .operate_item .icon{
    display: inline-block;
    width: 10px;
    height: 12px;
    position: absolute;
    left: 0;
    top: -2px;
}

/*主显文章END*/
.TOTOP {
    text-align: center;
    line-height: 36px;
    background-color: rgba(0, 0, 0, .4);
    height: 40px;
    width: 40px;
    border-radius: 3px;
    position: fixed;
    z-index: 20;
    right: 10px;
    bottom: 20px;
    opacity: 0;
    transition: all 1s;
    -webkit-transition: all 1s;
}
.TOTOP img {
    width: 70%;
}
/*回到顶部END*/
.mask{
    background: rgba(0,0,0,0);
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: 45px;
    z-index: 100;
}
.circle{
    width: 25px;
    height: 25px;
    border: 1px solid darkgray;
    border-radius: 50%;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -10px;
    margin-top: -60px;

}
.point{
    width: 24px;
    height: 24px;
    border-radius: 50%;
    color: darkgray;
    font-size: 18px;
    line-height: 23px;
    animation: turn 1s infinite linear;
    -webkit-animation: turn 1s infinite linear;
}
@keyframes turn{
    from{
        transform: rotate(0deg);
    }
    to{
        transform: rotate(360deg);
    }
}
@-webkit-keyframes turn{
    from{
        transform: rotate(0deg);
    }
    to{
        transform: rotate(360deg);
    }
}